For a triangle with side lengths 1.5 feet, 2 feet and 3 feet, the area of the triangle is:
(a) Approximately 1.3 feet2.
(b) Approximately 4.5 feet2.
(c) Approximately 1.5 feet2.
(d) Approximately 4 feet2.
(e) None of these are correct.
(a) Approximately 1.3 feet2.
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Graph the function f(x) over the given interval. Partition the interval into 4 subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum 
, using the indicated point in the kth subinterval for ck.f(x) = cos x + 4, [0, 2?], left-hand endpoint
A. 
B. 
C. 
D. 
Multiply.(3 - 11r)(3 + 11r)
A. 9 - 121r2 B. 9 - 66r - 121r2 C. 9 + 66r - 121r2 D. 9 - 11r2
What part of the object or set of objects is shaded?
A. 
B. 
C. 
D. 
Find sin ?, cos ?, tan ?, csc ?, sec ?, and cot ? for an acute angle ? in a right triangle. It is not necessary to find the measure of ?.sec ? = 
A. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 
B. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 
C. sin ? = 
cos ? = 
tan ? = 
csc ? = - 
sec ? = - 
cot ? = - 
D. sin ? = 
cos ? = 
tan ? = 
csc ? = 
sec ? = 
cot ? = 